The following list is a list of ethnolinguistic regions of South Asia. An ethnolinguistic region indicates a region of people that are united by a common language and ethnicity. South Asia is the southern region of the Asian continent, consisting mostly of the Indian subcontinent and sub-Himalayan countries, including, Bangladesh, Bhutan, Maldives, Nepal, India, Pakistan and Sri Lanka. The population of South Asia is about 1.749 billion, putting it as the most populated region in the world.^[1] The region is very linguistically diverse, with India alone having over 780 languages.^[2]

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• List of indigenous peoples of South Asia